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CUBN p.Arg3547=

c.10641G>A · rs145909413 · VCV289333

Conflicting classifications of pathogenicity Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 4 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0666%, amr)
Conditions
2
Imerslund-Grasbeck syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -1.4GERP -3.4
Overall
CADD0.53PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0666% Admixed American · 40/60,022 alleles
Filtering AF 0.0502% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0446%
Overall 0.023% 372/1,614,134 alleles · ultra-rare
Ancestry group Frequency 1 in
Ashkenazi Jewishnot grpmax-eligible 0.52% 192
Admixed Americangrpmax 0.0666% 1,501
Remaining individualsnot grpmax-eligible 0.0528% 1,894
Middle Eastern 0.033% 3,031
European (non-Finnish) 0.011% 9,077
South Asian 0.00988% 10,120
African / African-American 0.00267% 37,511
East Asian 0.00223% 44,872
Finnishnot grpmax-eligible 0.00156% 64,036

Ashkenazi Jewish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene
CUBN
Protein
p.Arg3547=
Coding
c.10641G>A
MANE Select
NM_001081
dbSNP
rs145909413
Type
single nucleotide variant
Location
chr10:16828928 (GRCh38)
Gene constraint
LOEUF 0.756 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Residue 3547
a UniProt-annotated variant site (in prochob); the cub 27 domain
Full CUBN gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Imerslund-Grasbeck syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Imerslund-Grasbeck syndrome type 1

For Imerslund-Gräsbeck syndrome (Orphanet):

Inheritance
Autosomal recessive
Onset
Childhood
Prevalence
1-9 / 1 000 000 (Finland)

Similar variants

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/cubn-p-arg3547 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown